PDF malware analysis — malicious · 594bc89e8ec391d5

MALICIOUS

PDF

72.8 KB Created: 2021-02-27 07:15:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04

MD5: 789134afc3ad1da61bc62847d10c796c SHA-1: 6932befd707bc812fc8d925bbba5ac18eb925b1c SHA-256: 594bc89e8ec391d5cc3c9b1103a44cfc3648181780c567adce627b993a2968de

76 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://xezojetit.ru/wix?keyword=brown+butter+bourbon+chocolate+chip+cookies PDF link annotation
- https://static.s123-cdn-static.com/uploads/4495391/normal_5ffbe01e78776.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4464709/normal_5fe1b28e30304.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366959/normal_5fe0984bcf3de.pdfIn PDF document text
- http://meine-gebuhrenfrei.com/14257624335ybhz5.pdfIn PDF document text
- http://hydrofthol.space/20909660577e7juq.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4495839/normal_5fca2eb834fc9.pdfIn PDF document text
- http://coolmag.biz/72616534514ttsoe.pdfIn PDF document text
- http://navalny.design/560556302253m2wr.pdfIn PDF document text
- http://ukranews.site/history_of_western_music_10th_editionlf6re.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491671/normal_60355d3e3a0a5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4407316/normal_5fe531728be8e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/vojapu/hand_beaten_copper_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/mejigavukolu/rujop.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e010.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE010	5368 bytes
SHA-256: `2885e23054e3e243ded96cceeb4ef2ab05f12016ad7199364ee1e046d35714ad`
`font_01_sfnt_off0000f25a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF25A	10408 bytes
SHA-256: `7fee8bcdf101facd84fec884b337feee98826acd6e5685c10e05f7db877780fe`

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